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Re: Numerical expression

  • To: mathgroup at smc.vnet.net
  • Subject: [mg128799] Re: Numerical expression
  • From: "Dave Snead" <dsnead6 at charter.net>
  • Date: Tue, 27 Nov 2012 03:31:29 -0500 (EST)
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  • References: <20121126042617.44760687B@smc.vnet.net>

Adding the necessary parentheses:
((9 (3)^(1/2) + 4 (23)^(1/2))^(1/3) + (9 (3)^(1/2) + 4 (23)^(1/2))^(1/
      3))/(3)^(1/2)
this comes out to
(2*(9*Sqrt[3] + 4*Sqrt[23])^(1/3))/Sqrt[3]

(2*(9*Sqrt[3] + 4*Sqrt[23])^(1/3))/Sqrt[3]//N
gives
3.76887
So it's not 1.

Cheers,
Dave Snead

-----Original Message----- 
From: Massimo
Sent: Sunday, November 25, 2012 8:26 PM
To: mathgroup at smc.vnet.net
Subject: [mg128799] Numerical expression

How could I handle in Mathematica this expression?

( ( 9(3)^1/2+4(23)^1/2)^1/3 + (9(3)^1/2+4(23)^1/2)^1/3  )  /  (3)^1/2)

With a lot of trouble I have found out that is equal 1,
but how to get it with Mathematica?

Thanks very much.



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